Mobility

Design of the Multicast Service for Mobile Users in the 802.16 Network Environment

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Executive Summary

Middle-domain mobility management provides an efficient routing, low registration cost and handoff latency for layer 3 (IP layer) 802.16-based mobile network environment. In the middle-domain, the 802.16 Base Station (BS) acts as an agent or proxy to manage mobile networks to achieve this goal. The BS could only address external traffic but without internal case management. In order to complement this defect, an enhanced version for the middle-domain mobility management is designed in this paper. Moreover, the authors research and design the multicast extension for the middle-domain by applying the idea of the enhancement, which is called HMP (Hierarchical Multicast Protocol). Associated handoff scheme is also proposed in this paper

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